公开(公告)号：US20240021839A1

公开(公告)日：2024-01-18

申请号：US18472211

申请日：2023-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Changsheng He ,  Mingjian Liu ,  Keqiang Li ,  Xiaosong Liu ,  Bin Xie ,  Zhiyang Wu

IPC: H01M4/66 ,  H01M10/04

CPC classification number: H01M4/667 ,  H01M10/0431 ,  H01M10/0409 ,  H01M2004/021

Abstract: Provided are an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes first electrode plates and a second electrode plate that are of opposite polarities. The second electrode plate and two first electrode plates are stacked and wound to form the electrode assembly. The second electrode plate is located between the two first electrode plates. Each of the first electrode plates includes a first composite current collector and a first active material layer. The first active material layer is disposed on a surface that is of the first composite current collector and that is oriented back from the second electrode plate. The first composite current collector is configured to dielectrically isolate the first active material layer from the second electrode plate and allow passage of ions transmitted between the first active material layer and the second electrode plate.

公开(公告)号：US20240327972A1

公开(公告)日：2024-10-03

申请号：US18735190

申请日：2024-06-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Keqiang Li ,  Xiaosong Liu ,  Zhiyang Wu ,  Yi Lu

IPC: C23C14/24 ,  C23C14/04 ,  C23C14/20

CPC classification number: C23C14/24 ,  C23C14/042 ,  C23C14/20

Abstract: Provided are a coating apparatus that can form a high-accuracy pattern coating on a base film, thereby improving the performance of components including the base film (such as current collectors). The coating apparatus includes: a coating-resistance pattern unit configured to form a pattern composed of a coating-resistance substance on a partial area of the surface of a base film, where the coating-resistance substance is used to restrict metal vapor from forming a coating; and a coating unit configured to apply the metal vapor to the base film with the pattern, so as to form a metal coating on the area of the surface of the base film where the coating-resistance substance is not provided.

公开(公告)号：US11961955B2

公开(公告)日：2024-04-16

申请号：US17712087

申请日：2022-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yiruo Wang ,  Zhiyang Wu ,  Xiao Wang ,  Chengcheng Jiang ,  Chao Xie ,  Liangzhen Dai

IPC: H01M10/04 ,  H01M10/0525 ,  H01M50/10 ,  H01M50/103

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M10/0468 ,  H01M50/103

Abstract: The present application relates to a method and an apparatus for manufacturing an electrode assembly of a secondary battery. Embodiments of the present application propose a method for manufacturing an electrode assembly of a secondary battery, the method comprising joining a positive electrode plate and a first separator to form a positive electrode composite plate body; joining a negative electrode plate and a second separator to form a negative electrode composite plate body; winding the positive electrode composite plate body and the negative electrode composite plate body together to form an electrode assembly, wherein the positive electrode plate and the negative electrode plate are disposed to isolate from each other by the first separator and the second separator.

公开(公告)号：US12027673B2

公开(公告)日：2024-07-02

申请号：US18326350

申请日：2023-05-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yiruo Wang ,  Zhiyang Wu ,  Gang Lin ,  Chao Xie ,  Guoda Huang ,  Yongli Zhang ,  Mingjian Liu

IPC: H01M10/0587

CPC classification number: H01M10/0587

Abstract: An electrode assembly manufacturing device includes a winding mechanism, a heating mechanism, a conveyor belt arranged between the heating mechanism and the winding mechanism, and a forming mechanism. The winding mechanism is configured to wind a positive electrode sheet, a separator, and a negative electrode sheet into an electrode assembly. The conveyor belt is configured to transfer the electrode assembly from the winding mechanism to the heating mechanism. The heating mechanism is configured to heat the electrode assembly. The forming mechanism is configured to press and form the electrode assembly.

公开(公告)号：US11978910B2

公开(公告)日：2024-05-07

申请号：US18472211

申请日：2023-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Changsheng He ,  Mingjian Liu ,  Keqiang Li ,  Xiaosong Liu ,  Bin Xie ,  Zhiyang Wu

IPC: H01M4/66 ,  H01M4/02 ,  H01M10/04

CPC classification number: H01M4/667 ,  H01M10/0409 ,  H01M10/0431 ,  H01M2004/021 ,  H01M2220/20

Abstract: Provided are an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes first electrode plates and a second electrode plate that are of opposite polarities. The second electrode plate and two first electrode plates are stacked and wound to form the electrode assembly. The second electrode plate is located between the two first electrode plates. Each of the first electrode plates includes a first composite current collector and a first active material layer. The first active material layer is disposed on a surface that is of the first composite current collector and that is oriented back from the second electrode plate. The first composite current collector is configured to dielectrically isolate the first active material layer from the second electrode plate and allow passage of ions transmitted between the first active material layer and the second electrode plate.

公开(公告)号：US11949059B2

公开(公告)日：2024-04-02

申请号：US18213277

申请日：2023-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang Wu ,  Yiruo Wang ,  Gang Lin ,  Guohang Liao

IPC: H01M10/0587 ,  H01M10/04

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M10/0587

Abstract: A winding method may comprise clamping heads of an anode plate, a cathode plate and a separator between a first half winding needle and a second half winding needle of a winding needle assembly at a winding station; and rotating the winding needle assembly at the winding station to wind the anode plate, the cathode plate and the separator to form an electrode assembly.

公开(公告)号：US20230163310A1

公开(公告)日：2023-05-25

申请号：US18099243

申请日：2023-01-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun ZENG ,  Fenggang Zhao ,  Qingyuan Jiang ,  Bo Han ,  Jiacal Cai ,  Qinglin Bai ,  Yuqian Wen ,  Zhiyang Wu

IPC: H01M4/66 ,  H01M50/531 ,  H01M50/553 ,  H01M50/55 ,  H01M50/176

CPC classification number: H01M4/661 ,  H01M50/531 ,  H01M50/553 ,  H01M50/55 ,  H01M50/176

Abstract: The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes: a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and including a first metal layer and a second metal layer disposed one on top of another; and a current collecting member, connected between the tab and the electrode terminal.

公开(公告)号：US11594791B2

公开(公告)日：2023-02-28

申请号：US16666754

申请日：2019-10-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun Zeng ,  Fenggang Zhao ,  Qingyuan Jiang ,  Bo Han ,  Jiacai Cai ,  Qinglin Bai ,  Yuqian Wen ,  Zhiyang Wu

IPC: H01M50/543 ,  H01M4/66 ,  H01M50/172 ,  H01M50/531

Abstract: The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes: a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and including a first metal layer and a second metal layer disposed one on top of another; and a current collecting member, connected between the tab and the electrode terminal.

公开(公告)号：US20240309515A1

公开(公告)日：2024-09-19

申请号：US18676513

申请日：2024-05-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Keqiang Li ,  Xiaosong Liu ,  Zhiyang Wu ,  Yi Lu

IPC: C23F1/08 ,  C23F1/02

CPC classification number: C23F1/08 ,  C23F1/02

Abstract: Provided an etching device that is capable of effectively realizing an opening structure with low cost and simplified process. The etching device includes: a porous roller, the porous roller being a hollow structure with openings at both ends, an etching liquid being accommodated in the hollow structure, and the porous roller being provided with a plurality of openings; a pressing roller, attached to the porous roller and arranged above the liquid level of the etching liquid, for pressing and attaching a metal layer to be etched onto the surface of the porous roller; wherein during rotation of the porous roller, the etching liquid passes through at least part of the openings of the plurality of openings and continuously soaks the metal layer in contact with the at least part of the openings, so as to continuously etch the metal layer in contact with the at least part of the openings.

公开(公告)号：US12000654B2

公开(公告)日：2024-06-04

申请号：US18231796

申请日：2023-08-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang Wu ,  Peng Jin ,  Lijun Li ,  Chaonan Liu

IPC: F27B9/24 ,  B65G15/10 ,  B65G17/00

CPC classification number: F27B9/243 ,  B65G15/105 ,  B65G17/00

Abstract: This application relates to a conveyor and a baking device. A traction rope may bring an electrode plate to move in a transport space. The traction rope may be of high flexibility and can more smoothly bring the electrode plate to move in various complex environments such as an arcuate oven, thereby effectively avoiding derailment or jamming of the conveyor in the oven and conveying the electrode plate more smoothly in the oven.